One person was taken in the helicopter following the chlorine explosion in the 1000 block of Dewey Street in Conway around 4 p.m., according to Beaver County Emergency Management.
A second patient was treated at the scene by medics and was later taken to an area hospital via ambulance, dispatchers told Daily Voice.
First responders cleared the scene at 5:30 p.m., according to dispatchers.
The extent and estimated cost of the damage is unknown.
Click here to follow Daily Voice Lower Paxton and receive free news updates.